Stake-pocket



(No Model.)

J. H. EVANS. STAKE POCKET.

No. 436,076. Patented Sept. 9, 1890.

UNITED STATES PATENT OFFICE.

JOHN H. EVANS, OF PHILADELPHIA, PENNSYLVANIA.

STAKE-POCKET.

SPECIFICATION forming part of Letters Fatent No. 436,076, dated September 9, 1890.

Application filed October 9, 1889. Serial No. 326,482, (No model.)

.To all whom, it may concern:

Be itknown that 1, JOHN H. EVANS, a citizen of the United States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in Stake-Pockets, of which the following is a specification.

My invention has relation to railway or other car sheet-metal stakepockets of the form having the strap sockets or recesses and edge beads or flanges formed integrally therewith for stiffening and strengthening purposes. These stake-pockets have heretofore been made either by upsetting the strapsockets and edge beads or flanges on sheetmetal blanks between dies or by rolling said sockets and beads or flanges on the sheet metal as it is rolled. In both cases the strapsockets and edge beads or flanges are continued horizontally around the pocket.

The advantages of the upsetting between dies are that the sheet metal of commerce can be used for the pocket-blanks, and no plant of specially-formed rolls for rolling the sheet metal for the pocket-blanks is required. This advantage, however, is offset by the objections incident to the drawing or stretching and condensing of the sheet metal in the dies.

The advantages of rolling the strap-sockets and edge-beads on the sheet metal are that such stretching and condensing of the metal is avoided, and the pocket has an inside true or smooth bearing-surface for the stake; but as many different styles or kinds of stake-pockets are used, and as each style necessitates specially-formed rollers for rolling the sheet metal, an expensive roller-plant is required.

My invention has for its object to avoid the disadvantages and avail myself of the advantages of both said described ways of making the stake-pocket, or, in other words, I use plain sheet metal for the pocket-blanks to avoid the cost of plant of specially-formed rolls, and so upset the sheet-metal blank in or between dies that detrimental drawing or stretching and condensing of the metal and the objections incident thereto are avoided, andthe pocket has a smooth, true, or unbroken inner bearing-surface forthestake. To this end I dispense with the specially formed,

located, and all-around strap sockets on the stake-pocket, and in lieu thereof I make the outer corners of the pocket in the form of hollow beads, tubes, or folds, and at intervals in their vertical length I compress them to corrugate said corners to cause them to serve as lateral and vertical braces for imparting to the pocket the necessary strength and rigidity, and, further, Iutilize said compressed parts or corrugations for recesses or sockets for the straps. I furtherdispense with the edge beads or flanges, and in lieu thereof use plain or straight edges, and shape or press out the upper and lower parts or ends of the pocket be yond the body or intermediate part of the pocket to form flaring or bell-mouth-like top and bottom ends, which described formation prevents the stake rubbing against the edges of the pocket and inherently strengthens'or stiffens it, and further gives to it vertically a chord or brace like form to resist the pressure of the load on the stake for additional strength or stiffness under all conditions of service.

My invention accordingly consists of a sheet-metal stake-pocket, as hereinafter more particularly described in the specification and pointed out in-the claims.

Reference is had to the accompanying drawings, wherein- Figure 1 is a perspective view of a stakepocket embodying my improvements and showing the straps in position thereon. Fig. 2 is a vertical section of same and part of the stake. Fig. 3 is a horizontal section of same, part of pocket and strap being broken away and shown in plan; and Figs. 4 and 5 are plan views of diflerent kinds of sheet-metal blanks for the pocket.

A represents the sheet-metal pocket upset from a blank of smooth or plain sheetmetal, and having the usual side wings or brackets a provided with the usual openings at for the straps B B, of which any suitable number may be used. In the drawings two such straps are shown. To strengthen and stiffen be made to divide the tubular corners into sections 0 0, having closed or partially-closed ends, so that said sections a a will act as lateral and Vertical corner-braces to correspondingly strengthen or stiifen the pocket A. If desired, the outer ends of the top and bottom corner-sections c 0 may be open, as shown in Fig. 1; butI preferto'compress orclose them, as indicated in Fig. 2. The edges of the pocket are preferably without beads or flanges, and, if desired, the cross-sectional area of the pocket may be the same from top to bottom or gradually increase from one end to the other, as is usual for cast-metal stake-pockets; but I prefer to shape or bend outwardly the upper and lower ends of the pocket from lines corresponding to the upper and lower straps B B, so that such ends will flare outwardly from or have a larger cross-sectional area than the body or intermediate part of the pocket between its upper and lower straps. Such formation of pocket provides bell-mouth or enlarged top and bottom ends, so that the stake cannot rub against the corresponding edges of the pocket, and it inherently stifiens and strengthens the pocket. In addition thereto it vertically imparts to the pocket a chord or brace-like form for resisting the lateral pressure of the load on the stake, as such lateral pressure falls upon the body orintermediate part of the pocket between its flaring ends, and any tendency of such pressure to force said intermediate or body part of the pocket outwardlyis counteracted by the flaring pocket ends. The compressions or corrugations d in the tubular corners 0 preferablyextend into or their bottom surfaces are in line with the outer side of the pocket, so that its inner surface is smooth or unbroken for a bearing for the stake.

The blank for the pockets may be plain, as indicated in.Fig. 4, or suitable openings 9 may be punched therein in line with that part of the blank which will be upset to form the tubular corners, and in line with the parts of the latter which are to be compressed or corru gated, which admits of more readily making said compressions or corrugations without undue stretching and compression of the metal at said parts. The compressions or corruga tions d serve also as recesses for the straps B B, as more plainly shown in Figs. 1 and 2. A stake-pocket made as described needs no trimming or finishing nor reshaping after it leaves the shaping-dies, as it is not by said dies drawn or stretched out of shape, and it can be easily and expeditiously made.

I wish it to be understood that I do not confine my invention to the configuration or style of pocket shown, nor to the number of compressions or corrugations in the tubular corners, nor to the number of straps used, nor to the location of the compressions or corrugations on the tubular corners, nor to the manner of forming such tubular corners, as they may be formed in the dies as the pocket is shaped therein, or said corners may be upset in the blank between separate dies before the blank is put into its shapingdies.

hat I claim is- 1. A stake-pocket having tubular corners, substantially as set forth.

2. A sheet-metal pocket having tubular corners divided into sections, substantially as set forth.

3. A sheet-metal stake-pocket having tubular corners and corrugations or compressions in said corners, substantially as set forth.

4. A sheet-metal stake-pocket having outwardly-flaring top and bottom ends, and tubular corner projections C, having strap recesses or depressions, substantially as set forth.

5. A sheet-metal stake pocket having flangeless top and bottom edges and hollow corner projections C, substantially as set forth.

6. A sheet-metal stake-pocket having top and bottom flaring ends, tubular corners O, with depressions or corrugations, and straps located at the base lines of said flaring ends and engaging with said corner corrugations, substantially as set forth.

In testimony whereof I afiix my signature in presence of two witnesses.

. JOHN II. EVANS.

Witnesses:

FRANK II. MAssEY, S. J. VAN STAVOREN. 

